flex聊天 发送QQ表情

代码：需要项目代码可以给我回帖并注明邮箱，或者直接去原出处下载（需要注册论坛ID）。

<?xml version="1.0" encoding="utf-8"?>  
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="init()">
        <mx:ArrayCollection id="arrColl">
                <mx:source>
                        <mx:Array id="arr">
                                <mx:Object data="0" tp="微笑" label="" icon="img/Face/0.swf"/>
                                <mx:Object data="1" tp="撇嘴" label="" icon="img/Face/1.swf"/>
                                <mx:Object data="2" tp="撇嘴" label="" icon="img/Face/2.swf"/>
                                <mx:Object data="3" tp="撇嘴" label="" icon="img/Face/3.swf"/>
                                <mx:Object data="4" tp="撇嘴" label="" icon="img/Face/4.swf"/>
                                <mx:Object data="5" tp="撇嘴" label="" icon="img/Face/5.swf"/>
                                <mx:Object data="6" tp="撇嘴" label="" icon="img/Face/6.swf"/>
                                <mx:Object data="7" tp="撇嘴" label="" icon="img/Face/7.swf"/>
                                <mx:Object data="8" tp="撇嘴" label="" icon="img/Face/8.swf"/>
                                <mx:Object data="9" tp="撇嘴" label="" icon="img/Face/9.swf"/>
                                
                                
                                <mx:Object data="10" tp="撇嘴" label="" icon="img/Face/10.swf"/>
                                <mx:Object data="11" tp="微笑" label="" icon="img/Face/11.swf"/>
                                <mx:Object data="12" tp="撇嘴" label="" icon="img/Face/12.swf"/>
                                <mx:Object data="13" tp="撇嘴" label="" icon="img/Face/13.swf"/>
                                <mx:Object data="14" tp="撇嘴" label="" icon="img/Face/14.swf"/>
                                <mx:Object data="15" tp="撇嘴" label="" icon="img/Face/15.swf"/>
                                <mx:Object data="16" tp="撇嘴" label="" icon="img/Face/16.swf"/>
                                <mx:Object data="17" tp="撇嘴" label="" icon="img/Face/17.swf"/>
                                <mx:Object data="18" tp="撇嘴" label="" icon="img/Face/18.swf"/>
                                <mx:Object data="19" tp="撇嘴" label="" icon="img/Face/19.swf"/>
                                

                                <mx:Object data="20" tp="撇嘴" label="" icon="img/Face/20.swf"/>                                                                
                                <mx:Object data="21" tp="撇嘴" label="" icon="img/Face/21.swf"/>
                                <mx:Object data="22" tp="撇嘴" label="" icon="img/Face/22.swf"/>
                                <mx:Object data="23" tp="撇嘴" label="" icon="img/Face/23.swf"/>
                                <mx:Object data="24" tp="撇嘴" label="" icon="img/Face/24.swf"/>
                                <mx:Object data="25" tp="撇嘴" label="" icon="img/Face/25.swf"/>
                                <mx:Object data="26" tp="撇嘴" label="" icon="img/Face/26.swf"/>
                                <mx:Object data="27" tp="撇嘴" label="" icon="img/Face/27.swf"/>
                                <mx:Object data="28" tp="撇嘴" label="" icon="img/Face/28.swf"/>
                                <mx:Object data="29" tp="撇嘴" label="" icon="img/Face/29.swf"/>
                                
                                
                                
                                <mx:Object data="30" tp="微笑" label="" icon="img/Face/30.swf"/>
                                <mx:Object data="31" tp="撇嘴" label="" icon="img/Face/31.swf"/>
                                <mx:Object data="32" tp="撇嘴" label="" icon="img/Face/32.swf"/>
                                <mx:Object data="33" tp="撇嘴" label="" icon="img/Face/33.swf"/>
                                <mx:Object data="34" tp="撇嘴" label="" icon="img/Face/34.swf"/>
                                <mx:Object data="35" tp="撇嘴" label="" icon="img/Face/35.swf"/>
                                <mx:Object data="36" tp="撇嘴" label="" icon="img/Face/36.swf"/>
                                <mx:Object data="37" tp="撇嘴" label="" icon="img/Face/37.swf"/>
                                <mx:Object data="38" tp="撇嘴" label="" icon="img/Face/38.swf"/>
                                <mx:Object data="39" tp="撇嘴" label="" icon="img/Face/39.swf"/>
                                
                                
                                
                                <mx:Object data="40" tp="微笑" label="" icon="img/Face/40.swf"/>
                                <mx:Object data="41" tp="撇嘴" label="" icon="img/Face/41.swf"/>
                                <mx:Object data="42" tp="撇嘴" label="" icon="img/Face/42.swf"/>
                                <mx:Object data="43" tp="撇嘴" label="" icon="img/Face/43.swf"/>
                                <mx:Object data="44" tp="撇嘴" label="" icon="img/Face/44.swf"/>
                                <mx:Object data="45" tp="撇嘴" label="" icon="img/Face/45.swf"/>
                                <mx:Object data="46" tp="撇嘴" label="" icon="img/Face/46.swf"/>
                                <mx:Object data="47" tp="撇嘴" label="" icon="img/Face/47.swf"/>
                                <mx:Object data="48" tp="撇嘴" label="" icon="img/Face/48.swf"/>
                                <mx:Object data="49" tp="撇嘴" label="" icon="img/Face/49.swf"/>
                                
                                
                                
                                <mx:Object data="50" tp="微笑" label="" icon="img/Face/50.swf"/>
                                <mx:Object data="51" tp="撇嘴" label="" icon="img/Face/51.swf"/>
                                <mx:Object data="52" tp="撇嘴" label="" icon="img/Face/52.swf"/>
                                <mx:Object data="53" tp="撇嘴" label="" icon="img/Face/53.swf"/>
                                <mx:Object data="54" tp="撇嘴" label="" icon="img/Face/54.swf"/>
                                <mx:Object data="55" tp="撇嘴" label="" icon="img/Face/55.swf"/>
                                <mx:Object data="56" tp="撇嘴" label="" icon="img/Face/56.swf"/>
                                <mx:Object data="57" tp="撇嘴" label="" icon="img/Face/57.swf"/>
                                <mx:Object data="58" tp="撇嘴" label="" icon="img/Face/58.swf"/>
                                <mx:Object data="59" tp="撇嘴" label="" icon="img/Face/59.swf"/>
                                
                                
                                <mx:Object data="60" tp="微笑" label="" icon="img/Face/60.swf"/>
                                <mx:Object data="61" tp="撇嘴" label="" icon="img/Face/61.swf"/>
                                <mx:Object data="62" tp="撇嘴" label="" icon="img/Face/62.swf"/>
                                <mx:Object data="63" tp="撇嘴" label="" icon="img/Face/63.swf"/>
                                <mx:Object data="64" tp="撇嘴" label="" icon="img/Face/64.swf"/>
                                <mx:Object data="65" tp="撇嘴" label="" icon="img/Face/65.swf"/>
                                <mx:Object data="66" tp="撇嘴" label="" icon="img/Face/66.swf"/>
                                <mx:Object data="67" tp="撇嘴" label="" icon="img/Face/67.swf"/>
                                <mx:Object data="68" tp="撇嘴" label="" icon="img/Face/68.swf"/>
                                <mx:Object data="69" tp="撇嘴" label="" icon="img/Face/69.swf"/>
                                
                                
                                <mx:Object data="70" tp="微笑" label="" icon="img/Face/70.swf"/>
                                <mx:Object data="71" tp="撇嘴" label="" icon="img/Face/71.swf"/>
                                <mx:Object data="72" tp="撇嘴" label="" icon="img/Face/72.swf"/>
                                <mx:Object data="73" tp="撇嘴" label="" icon="img/Face/73.swf"/>
                                <mx:Object data="74" tp="撇嘴" label="" icon="img/Face/74.swf"/>
                                <mx:Object data="75" tp="撇嘴" label="" icon="img/Face/75.swf"/>
                                <mx:Object data="76" tp="撇嘴" label="" icon="img/Face/76.swf"/>
                                <mx:Object data="77" tp="撇嘴" label="" icon="img/Face/77.swf"/>
                                <mx:Object data="78" tp="撇嘴" label="" icon="img/Face/78.swf"/>
                                <mx:Object data="79" tp="撇嘴" label="" icon="img/Face/79.swf"/>
                                
                                
                                <mx:Object data="80" tp="微笑" label="" icon="img/Face/80.swf"/>
                                <mx:Object data="81" tp="撇嘴" label="" icon="img/Face/81.swf"/>
                                <mx:Object data="82" tp="撇嘴" label="" icon="img/Face/82.swf"/>
                                <mx:Object data="83" tp="撇嘴" label="" icon="img/Face/83.swf"/>
                                <mx:Object data="84" tp="撇嘴" label="" icon="img/Face/84.swf"/>
                                <mx:Object data="85" tp="撇嘴" label="" icon="img/Face/85.swf"/>
                                <mx:Object data="86" tp="撇嘴" label="" icon="img/Face/86.swf"/>
                                <mx:Object data="87" tp="撇嘴" label="" icon="img/Face/87.swf"/>
                                <mx:Object data="88" tp="撇嘴" label="" icon="img/Face/88.swf"/>
                                <mx:Object data="89" tp="撇嘴" label="" icon="img/Face/89.swf"/>
                                
                                
                                <mx:Object data="90" tp="微笑" label="" icon="img/Face/90.swf"/>
                                <mx:Object data="91" tp="撇嘴" label="" icon="img/Face/91.swf"/>
                                <mx:Object data="92" tp="撇嘴" label="" icon="img/Face/92.swf"/>
                                <mx:Object data="93" tp="撇嘴" label="" icon="img/Face/93.swf"/>
                                <mx:Object data="94" tp="撇嘴" label="" icon="img/Face/94.swf"/>
                                <mx:Object data="95" tp="撇嘴" label="" icon="img/Face/95.swf"/>
                                <mx:Object data="96" tp="撇嘴" label="" icon="img/Face/96.swf"/>
                                <mx:Object data="97" tp="撇嘴" label="" icon="img/Face/97.swf"/>
                                <mx:Object data="98" tp="撇嘴" label="" icon="img/Face/98.swf"/>
                                <mx:Object data="99" tp="撇嘴" label="" icon="img/Face/99.swf"/>
                                
                                
                                <mx:Object data="100" tp="微笑" label="" icon="img/Face/100.swf"/>
                                <mx:Object data="101" tp="撇嘴" label="" icon="img/Face/101.swf"/>
                                <mx:Object data="102" tp="撇嘴" label="" icon="img/Face/102.swf"/>
                                <mx:Object data="103" tp="撇嘴" label="" icon="img/Face/103.swf"/>
                                <mx:Object data="104" tp="撇嘴" label="" icon="img/Face/104.swf"/>
                                <mx:Object data="105" tp="撇嘴" label="" icon="img/Face/105.swf"/>
                                <mx:Object data="106" tp="撇嘴" label="" icon="img/Face/106.swf"/>
                                <mx:Object data="107" tp="撇嘴" label="" icon="img/Face/107.swf"/>
                                <mx:Object data="108" tp="撇嘴" label="" icon="img/Face/108.swf"/>
                                <mx:Object data="109" tp="撇嘴" label="" icon="img/Face/109.swf"/>
                                
                                
                                <mx:Object data="110" tp="微笑" label="" icon="img/Face/110.swf"/>
                                <mx:Object data="111" tp="撇嘴" label="" icon="img/Face/111.swf"/>
                                <mx:Object data="112" tp="撇嘴" label="" icon="img/Face/112.swf"/>
                                <mx:Object data="113" tp="撇嘴" label="" icon="img/Face/113.swf"/>
                                <mx:Object data="114" tp="撇嘴" label="" icon="img/Face/114.swf"/>
                                <mx:Object data="115" tp="撇嘴" label="" icon="img/Face/115.swf"/>
                                <mx:Object data="116" tp="撇嘴" label="" icon="img/Face/116.swf"/>
                                <mx:Object data="117" tp="撇嘴" label="" icon="img/Face/117.swf"/>
                                <mx:Object data="118" tp="撇嘴" label="" icon="img/Face/118.swf"/>
                                <mx:Object data="119" tp="撇嘴" label="" icon="img/Face/119.swf"/>
                                
                                <mx:Object data="120" tp="微笑" label="" icon="img/Face/120.swf"/>
                                <mx:Object data="121" tp="撇嘴" label="" icon="img/Face/121.swf"/>
                                <mx:Object data="122" tp="撇嘴" label="" icon="img/Face/122.swf"/>
                                <mx:Object data="123" tp="撇嘴" label="" icon="img/Face/123.swf"/>
                                <mx:Object data="124" tp="撇嘴" label="" icon="img/Face/124.swf"/>
                                <mx:Object data="125" tp="撇嘴" label="" icon="img/Face/125.swf"/>
                                <mx:Object data="126" tp="撇嘴" label="" icon="img/Face/126.swf"/>
                                <mx:Object data="127" tp="撇嘴" label="" icon="img/Face/127.swf"/>
                                <mx:Object data="128" tp="撇嘴" label="" icon="img/Face/128.swf"/>
                                <mx:Object data="129" tp="撇嘴" label="" icon="img/Face/129.swf"/>
                                
                                <mx:Object data="130" tp="微笑" label="" icon="img/Face/130.swf"/>
                                <mx:Object data="131" tp="撇嘴" label="" icon="img/Face/131.swf"/>
                                <mx:Object data="132" tp="撇嘴" label="" icon="img/Face/132.swf"/>
                                <mx:Object data="133" tp="撇嘴" label="" icon="img/Face/133.swf"/>
                                <mx:Object data="134" tp="撇嘴" label="" icon="img/Face/134.swf"/>
                                
                        </mx:Array>
                </mx:source>
        </mx:ArrayCollection>
                <mx:Script>
                        <!--[CDATA[
                                import mx.events.ColorPickerEvent;
                        //占位符
                        private var placeholder:String="[img:{0}]";

                        private function imageclick(evt:Event):void
                        {
                                var img:Image=evt.currentTarget as Image;
                                var idx:int=int(img.data);
//
                                var str:String=placeholder.replace("{0}", idx.toString());
//
                                this.insertString(str);

                                //关闭弹出菜单
                                this.popUpButton_pic.close();
                        }
                        //设置字体属性
                        private function checkBox_fontsetup(evt:Event):void
                        {
                                var ch:CheckBox=evt.currentTarget as CheckBox;
                                var data:String=ch.data.toString();

                                if (data == "fontWeight")
                                {
                                        if (ch.selected)
                                        {
//                                                this.fontWeight="bold";
                                        }
                                        else
                                        {
//                                                this.fontWeight="normal";
                                        }
                                }

                                if (data == "fontStyle")
                                {
                                        if (ch.selected)
                                        {
//                                                this.fontStyle="italic";
                                        }
                                        else
                                        {
//                                                this.fontStyle="normal";
                                        }
                                }

                                if (data == "textDecoration")
                                {
                                        if (ch.selected)
                                        {
//                                                this.fontTextDecoration="underline";
                                        }
                                        else
                                        {
//                                                this.fontTextDecoration="none";
                                        }
                                }
                        }

                        //设置字体颜色
                        private function colorPicker_color(evt:ColorPickerEvent):void
                        {
//                                fontColor=this.fontsetup_color.selectedColor;
                        }
                        
                        private function insertString(insertStr:String):void
                        {
                                if (this.textEditor.selectionBeginIndex == this.textEditor.selectionEndIndex)
                                {
                                        var startPart:String=this.textEditor.text.substring(0, this.textEditor.selectionBeginIndex);
                                        var endPart:String=this.textEditor.text.substring(this.textEditor.selectionEndIndex, this.textEditor.text.length);
                                        startPart+=insertStr;
                                        startPart+=endPart;
                                        this.textEditor.text=startPart;
                                }
                                else
                                {
                                        this.textEditor.text=insertStr;
                                }
                        }


                        
                        ]]>
                </mx:Script>        
                <mxanel x="168.5" y="82" width="410" height="322" layout="absolute" title="聊天室">
                                <mx:Canvas x="10" y="0" width="370" height="158" themeColor="#FF0042" borderStyle="inset" borderColor="#1094F1" id="cs">
                                        <mx:VBox id="vd" updateComplete="updateCompleteHandler(event)" width="100%" height="100%" borderStyle="solid" borderThickness="1" borderColor="#000000" verticalScrollPolicy="auto" horizontalScrollPolicy="auto">
                                        </mx:VBox>
                                </mx:Canvas>
                                <mxopUpButton id="popUpButton_pic" icon="@Embed('img/face.png')" openAlways="true" toolTip="请选择表情图片" width="50" x="19.5" y="166">
                                                                        <mx:popUp>
                                                                                <mx:TitleWindow id="titleWindow_popUp" status="单击图片选择聊天表情"  
                                                                                        width="450" height="400" 
                                                                                        showCloseButton="true" verticalScrollPolicy="on" horizontalScrollPolicy="off" close="popUpButton_pic.close();">
                                                                                        <mx:ToolBar width="430">
                                                                                                <mx:Repeater id="myRep" dataProvider="{arrColl}">
                                                                                                        <mx:Image click="imageclick(event)" buttonMode="true" data="{myRep.currentIndex}" toolTip="{myRep.currentItem.tp}" source="{myRep.currentItem.icon}">
                                                                                                        </mx:Image>
                                                                                                </mx:Repeater>
                                                                                        </mx:ToolBar>
                                                                                </mx:TitleWindow>
                                                                        </mx:popUp>
                                </mxopUpButton>
                                <mx:TextArea id="textEditor" x="10" y="196" width="291" height="67"/>
                                <mx:Button x="309" y="195" label="发送" height="68" width="71" fontSize="13" click="sendMessage()"/>
                                <mxopUpButton id="popUpButton_fontSetup" icon="@Embed('img/a.png')" openAlways="true" toolTip="设置字体样式" width="50" x="77.5" y="166">
                                                                        <mx:popUp>
                                                                                <mx:TitleWindow id="titleWindow_popUp_fontSetup" status="选择字体样式" showCloseButton="true" close="popUpButton_fontSetup.close();">
                                                                                        <mx:HBox>
                                                                                                <mx:CheckBox id="fontsetup_fontWeight" change="checkBox_fontsetup(event)" data="fontWeight" toolTip="粗体" label="">
                                                                                                </mx:CheckBox>
                                                                                                <mx:Image source="img/typeface/b.png" toolTip="粗体">
                                                                                                </mx:Image>
                                                                                                <mx:CheckBox id="fontsetup_fontStyle" change="checkBox_fontsetup(event)" data="fontStyle" toolTip="倾斜" label="">
                                                                                                </mx:CheckBox>
                                                                                                <mx:Image source="img/typeface/i.png" toolTip="倾斜">
                                                                                                </mx:Image>
                                                                                                <mx:CheckBox id="fontsetup_textDecoration" change="checkBox_fontsetup(event)" data="textDecoration" toolTip="下划线" label="">
                                                                                                </mx:CheckBox>
                                                                                                <mx:Image source="img/typeface/u.png" toolTip="下划线">
                                                                                                </mx:Image>
                                                                                                <mx:ColorPicker id="fontsetup_color" change="colorPicker_color(event)" toolTip="颜色">
                                                                                                </mx:ColorPicker>
                                                                                        </mx:HBox>
                                                                                </mx:TitleWindow>
                                                                        </mx:popUp>
                                </mxopUpButton>
                                <mx:TextInput x="141" y="166" width="84" text="姓名：" id="userName"/>
                                
                </mxanel>
        <mxroducer id="producer" destination="mychat">
                
        </mxroducer>
        
        <mx:Consumer id="consumer" destination="mychat" message="messagehandle(event)">
                
        </mx:Consumer>
        <mx:Script>
                <![CDATA[
                        import mx.events.FlexEvent;
                        import mx.controls.Label;
                        import mx.containers.HBox;
                        import mx.controls.Text;
                        import mx.controls.Image;
                        import mx.controls.SWFLoader;
                        import mx.controls.Alert;
                        import mx.containers.VBox;
                        import mx.messaging.events.MessageAckEvent;
                        import mx.messaging.events.ChannelFaultEvent;
                        import mx.messaging.events.ChannelEvent;
                        import mx.messaging.ChannelSet;
                        import mx.messaging.channels.AMFChannel;
                        import mx.messaging.channels.StreamingAMFChannel;
                        import mx.messaging.events.MessageFaultEvent;
                        
                        import mx.messaging.messages.AsyncMessage;
                        import mx.messaging.events.MessageEvent;
                        public function init(){
                                initChannel();
                                consumer.subscribe();
                                producer.addEventListener(MessageFaultEvent.FAULT,error);
                                
                        
                        }
                        private function addEvent(){
//                                producer.addEventListener(ChannelEvent.CHANNEL_CONNECT,channelConnection);
//                                producer.addEventListener(ChannelEvent.CHANNEL_DISCONNECT,channelDisconnect);
//                                producer.addEventListener(ChannelFaultEvent.CHANNEL_FAULT,channelFault);
//                                producer.addEventListener(MessageAckEvent.ACKNOWLEDGE
                                
                                
                        }
                        
                        
                        public function initChannel(){
                                var url="http://192.168.200.14:8080/J2EE/";
                                var myStreamingAMF:StreamingAMFChannel = new StreamingAMFChannel(url+"my-streaming-amf", url+"messagebroker/streamingamf");
                                var myPollingAMF:AMFChannel = new AMFChannel(url+"my-polling-amf", url+"messagebroker/amfpolling");
                                myPollingAMF.pollingEnabled = true;
                                myPollingAMF.pollingInterval = 2000;
                                var channelSet:ChannelSet = new ChannelSet();
                                channelSet.addChannel(myStreamingAMF);
                                channelSet.addChannel(myPollingAMF);
                                consumer.channelSet = channelSet;                                
                                producer.channelSet = channelSet;
                        }
                        public function messagehandle(event:MessageEvent){
//                                ta.text+=event.message.body.text+"\n";
//                                ta.htmlText+=event.message.body.htmlText;

                                this.vd.verticalScrollPosition=this.vd.maxVerticalScrollPosition;
                                this.cs.verticalScrollPosition=cs.maxVerticalScrollPosition;
                                var messages:String=event.message.body.text;
                                
//                                var image:Image=new Image;
//                                image.source="img/Face/134.swf";
//                                image.autoLoad=true;
//                            vd.addChild(image);
                                //日期和时间
                                var messageDate:Text=this.getTxtMessage(event.message.body.userAndDate)
                                messageDate.setStyle("color","red")
                                vd.addChild(messageDate);
                            vd.addChild(parseMessage(messages));
                            
                            this.vd.verticalScrollPosition=this.vd.maxVerticalScrollPosition;
//                                vd.addChild(image);
//                                mx.controls.Alert.show(event.message.body.text);
                                
                        }
                        private static var top:String="[img:";
                        
                        /***
                         * 这段是主要的解析接受到的信息，麻烦哪位老大给优化下。有个问题就是 只能接收一行
                         * 
                         * */
                        private function parseMessage(messages:String):HBox{
                                
                                var hBox:HBox=new HBox;
                                var msg:String=messages;
                                var swfArray:Array=msg.split(top);
                                
                                if(swfArray.length==1){ //如果==1，说明没有发送表情
                                        hBox.addChild(getTxtMessage(msg));
//                                        Alert.show(txt.text);
                                        return hBox;
                                }
                                var i:int=0;
                                //下边的大致思路是，（是否有文字）swf（是否有文字） swf（是否有文字）
                                
                                for each(var swf:String in swfArray){
                                        
//                                        i==0判断一个swf前边是否有文字，有的话就添加进Hbox 如：文字 swf
                                        if(i==0){
                                                var startMessage:String=msg.substring(0,msg.indexOf("["));//开始的字体
                                                if(startMessage!=""||startMessage!=null){
                                                        hBox.addChild(getTxtMessage(startMessage));
                                                }
                                                        
                                                
                                        }
                                        i++;
                                        if(swf.indexOf("]")!=-1){
                                                var icon:String=swf.substring(0,swf.indexOf("]"));
                                                var mess:String=swf.substring(swf.indexOf("]")+1,swf.length);
                                                if(!isNaN(Number(icon))){
                                                        hBox.addChild(getImage(parseInt(icon)));
                                                }
                                                if(mess!=""||mess!=null){
                                                        
                                                        hBox.addChild(getTxtMessage(mess));
                                                }
                                                trace(icon);
                                        }
                                        
                                }
                                return hBox;
                        }
                        private function getImage(id:Number):Image{
                                var image:Image=new Image;
                                image.source="img/Face/"+id+".swf";
                                trace(image.source);
                                image.autoLoad=true;
                                return image;
                                
                        }
                        
                        private function getTxtMessage(mess:String):Text{
                                var txt:Text=new Text;
                                txt.text=mess;
                                return txt;
                        }
                        private function sendMessage():void{
                                if(textEditor.text==""){
                                        Alert.show("不能发送空消息");
                                        return;
                                }
                                
                                var message:AsyncMessage=new AsyncMessage();
//                                message.body.text=userName.text+":"+msg.text+" ";
                                message.body.text=textEditor.text;
                                message.body.userAndDate=userName.text+" "+new Date();
                                producer.send(message);
                                textEditor.text="";
                                vd.verticalScrollPosition=vd.maxVerticalScrollPosition;
                                this.cs.verticalScrollPosition=cs.maxVerticalScrollPosition;
                                
                        }
                        public function error(event:MessageFaultEvent){
                                trace(event.message);
                        }
                        
                        //滚动条自动滚动到最下面，方便用户看聊天记录
                        private function updateCompleteHandler(evt:FlexEvent):void
                        {
                                
                                this.vd.verticalScrollPosition=this.vd.maxVerticalScrollPosition;
                        }
                ]]-->
        </mx:Script>
        
        
        
</mx:Application>

转自：

http://www.eb163.com/club/thread-3304-1-1.html